multiset::reference
提供項目參考的型別在多重集儲存。
typedef typename allocator_type::reference reference;
範例
// multiset_ref.cpp
// compile with: /EHsc
#include <set>
#include <iostream>
int main( )
{
using namespace std;
multiset <int> ms1;
ms1.insert( 10 );
ms1.insert( 20 );
// Declare and initialize a reference &Ref1 to the 1st element
const int &Ref1 = *ms1.begin( );
cout << "The first element in the multiset is "
<< Ref1 << "." << endl;
}
需求
標題: <set>
命名空間: std